Improvement in arms of broadcast-seeding machines



H. J.:HALE.

seed-Drill Teeth. No. 22.870. 4 Patented Feb. 8. 1859.

UNITED STATES PATENT` OFFICE.

HENRY J. HALE, or INDIANAPOLIS, INDIANA.

IMPROVEMENT IN ARMS 0F BROADCAST-SEEDING MACHINES.

Specification forming part of Letters Patent No. 22,870, dated February 8, 1859.

To all whom 'it may concern:

Beit known that 1, HENRY J. HALE, of Indianapolis,in the county of Marion and State of Indiana, have invented a new and useful Improvement in Broadcasting Grain-Sowers, ot' which the following is a full and exact description, reference being had to the accompanying drawings andthe letters of reference marked thereon.

Figure l is a perspective, and Fig. 2 a sectional, view ofthe arm of a broadcasting grainsower, which hy being revolved casts the grain by centrifugal force.

A is a pitman designed tooperate the lever B, which operates the slide or valve C. The arm has an extension beyond the slide @,which is'hinged at D and adjusted and held at any desired angle of elevation or depression by means of the slotted segmentsand set-screws E E.

The construction of the extension is as follows: The bottom plate is hinged at D, while the opening F, which allows the bending of the arm, is lined or guarded with sheet metal in such a manner as to cause no obstruction to the free passage ot' grain through the arm. The top oftheopening F is closed by sheetmetal,which,by bending and sliding in the groove G, keeps the passage through the arm open and complete while bending the required angle ot' elevation or depression. The bottom of the slide or valve C,when closed, rests upon a piece of gum-elastic, which is fitted in the bottom of the arm atH to prevent the closing of g the valve from crushing the grain.

J is a valve designed to regulate the amount ot' grain discharged, and is operated by the set-screw K, which is hehl, when adjusted, by ythe guard L.

The ope-ration is-as follows: The arm, being and elevating and depressing the same I havem varied the castot grain from fteen to sixty feet in width. The amount of grain sown is regulated by the set-screw l( and valve J. The advantage of this arrangement is seen in the fact that grain may be sown when the air is vstill to the extent of sixty feet in width of land or cast, while when the wind is blowing it may be sown by depressing the extension ot the arm, thereby contracting the extent ofthe cast and causing the grain to be sent to the ground with greater force.

What l claim, and desire to secure by Letters Patent, is`

The combination and arrangement ot' the segments E E and hinge 1),\vhen constructed and arranged as and for the purposes setforth.

. HENRY J. HALE.

Vitnesses:

R. J. GLAsscooK, N. R. STEDMAN. 

